Snatch carrier tackle



April 22, 1952 D. H. HENDERSON SNATCH CARRIER TACKLE Filed May 28, 1949 Y INVENTOR. DEL BERT H HENDERSON BY I Patented Apr. 22, 1952 UNITED STATES FATENT OFFICE SNATCH CARRIER TACKLE Delbert H. Henderson, Shaker Heights, Ohio Application May 28, 1949, Serial No. 95,923

3 Claims.

My invention relates to new and useful improvements in hoisting devices, particularly as related to devices embodying the use of pulleys.

The primary object of my invention is to provide a device in the form of a hoist in which two pulleys coact as travelling pulleys to carry a load to any desired point.

A, further object of the invention is to provide a device of the class described in which the travelling pulleys in conjunction with a power source and a snatch block will lift and carry a load to any desired point and height.

A further object of the invention is the provision of a device as described, by the use of which one man may hoist a load to a distant point and also clear any intervening obstructions, in the line of travel of the load.

A further object of the invention is the providing of a device using a special pulley system or sheave for hoisting all kinds of material, or equipment to any desired highest point, convenient for use on small jobs of work which do not warrant the use of heavy equipment for hoisting.

A further object of the invention is the providing of a device of the class described which has a load bearing hook that is adapted to automatically hitch and look within a sheave frame when raised to such position.

Many other objects and uses of the invention will become apparent by a reading of the description and a reference to the drawings, in which:

Fig. l is a partially sectional view in elevation of the device.

Fig. 2 is an edge view in elevation of the de vice as shown in Fig. 1.

Fig. 3 is a side view in elevation of the frame 'or housing of the device showing a removable section as a convenient means of access to the cable.

Describing the device as drawings:

The numerals I and 2 refer to the side members of the frame enclosing the pulleys 4 and 5 and the hook I S mechanism, 3 refers to a removable section of the frame which is secured to the frame member I by means of bolts 8 and 9, 4 and 5 are pulleys with concave or grooved edges, and positioned within the frame members I and 2 on the axles 6 and l, which axles are held securely within such frame by means of the disks I3 and M, the pulley 4 has the disks 4A disposed between the faces of the pulley and the shown in the inside of the housing and the pulley 5 having the disks 5A disposed in the same manner as the disks 4A, in order to maintain such pulleys in vertical alinement with each other, said pulleys and frame forming a sheave block as shown in Figure 2. H3 is a third pulley supported by axle II and attached on a snatch-block (not shown) I2 is a cable, having its lower end fixed in the ball shaped end of the hook It by means of the screw bolts 28, such cable passes over the lower pulley 5, around the snatch-block pulley Ill, and back over the lower grooved edge of the other sheave pulley 4 to a power unit, (not shown) IT is a wedge or retaining block which is activated by the trip and locking lever 29, I9 being pivotally connected to the lever 20 by means of 24 and being pivotally attached to H by the means 23 and to the lever proper by means of the pivoted connection 24, the lever 29 is pivotally supported in the frame members by 22, the outer, or depending end 2| is attached to the lever arm by means of 25, a spiral I3 is disposed within the housing, between the housing and the block ll, such spring being loaded by drawing the block I! away from the opening 21A through the lower or bottom wall of the frame in order to permit the ball end I5 to enter the housing after a load has been picked up by the hook I5, when the lever 20 is released the spring I8 outloads and slides the block I! under the edge of the flat base surface of the ball, thus securely holding the suspended load for moving it to the desired position determined by the position of the pulley H). 29 is a cable, or rope to guide the loaded hook 16 so it will enter the opening 21A.

It will be understood from the description and drawing that the principal object to be attained by the use and operation of this invention is to pick up a load at a place remote from where such load is to be deposited or delivered, such destination being determined by the position of the snatch-block to which the pulley I0 is attached, however, a description of the operation of the device follows herein,

The device as shown and described consists principally of a hoisting cable, a sheave assembly and block of the frame members with two grooved pulleys rotatably mounted within the frame in vertical alinement with each other, a hoisting cable leading from a power unit, through the sheave assembly, a third grooved pulley attached to a snatch-block at a position remote from the power unit and the load to be lifted and moved, and a hook fixed on the opposite end of the cable adapted to pick up a load.

In the operation of the device, a snatch-block is positioned at a desired place to which a load, or loads are to be moved, or deposited, the pulley I!) being rotatably attached to such snatch-block with the cable 12 engaging in the groove of such pulley.

The sheave assembly is moved to a point where a load is to be picked up, the lever 20 is pulled outward, drawing the block I! away from the openings 21A and from underneath the base of the ball l5 and against the pressure of the spring 18, this releases the ball l5 with the attached hook 16 so that it drops through the opening 21A to the load to be lifted. After securing the load to the hook, the power is applied to the cable and the load is raised until the ball end contacts the opening 21A, the lever 20 is now operated so as to draw the block I! away from such opening to permit the ball l5 to be drawn up through such opening and secured therein by releasing the block II, the recoil of the loaded spring forcing such block under the flat portion or base of the ball, the cable l2 by means of the power unit and the pulley I0 then drawsthe sheave unit or block with the attached load to the position where such pulley Ill and snatch-block (not shown) are positioned, at which point the load is to be deposited, either by releasing the loaded hook from the sheave and lowering such by means of the cable or by lowering the sheave with the loaded hook unreleased from the sheave.

From the foregoing description it will be readily seen that this device provides a safe and convenient means in the form of a traveling tackle to move a load from a position remote from the power unit as well as the place to which such load is to be moved.

I have shown my device in an exemplary form and structure, however, adaptations in use may necessitate modifications in form or structure or both, without departing from the basic features or spirit of the invention.

What I claim as new and desire to secure by Letters Patent, is:

1. In a device of the character described, comprising an elongated form of two flat side members, spaced parallel and joined in their lower end portions in a manner to form a sheave frame, two grooved pulleys disposed and rotatably fixed within the said sheave frame in vertical alinement with each other to form a sheave block, an

opening in the joining means to permit the ball form end of a load carrying hook to be drawn into a position within and between the lower end portion of said side members, means for securely retaining and locking the said ball form end in the said position between the side members, means for moving said sheave block and loaded hook to a point remote from the place where the load was originally located.

2. In a device of th character described, comprising the structure set forth in claim 2, the said retaining and locking means consisting of a block slidably supported and positioned horizontally adjacent to and partially extending over the said lower opening, a spiral spring disposed between one end of such block and the wall of the said joining means, alever movably fixed in the lower portion of the frame and its inner end pivotally connected to the adjacent end of the said block with the outer end of such lever extending outwardly beyond the side member for manual operation, said lever adapted to slide said block away from said opening to permit said ball form end of said hook to be drawn up through said opening, and releasing said block by such lever, holds and locks said ball end securely within the said sheave block.

3. In a device of the character described comprising the structure described in claim 2, one end of a cable fixed in the said ball form end, said cable passing over the lower of said sheave pulleys, over a second grooved pulley rotatably mounted on a snatch-block with the opposite end of such cable attached to a power unit and engaging in the lower groove part of the other sheave pulley, said cable adapted to cause the sheave block, with the said loaded hook, to travel to the position of the said snatch-block for disposition of the load.

DELBERT H. HENDERSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 335,061 Dugan Jan. 26, 1886 1,085,827 Sharkey Feb. 3, 1914 1,433,368 Glasner Oct. 24, 1922 

